What is a hallmark feature of Excoriation Disorder?

Excoriation Disorder, also known as skin-picking disorder, is characterized by the repetitive, compulsive picking of one's own skin, which leads to noticeable lesions or wounds. This behavior often occurs despite attempts to decrease or stop the picking, indicating a lack of control over the urge. The visible impact of skin picking, with resulting skin lesions, is a defining aspect of the disorder, as it differentiates it from other behavioral issues.

The other options do not pertain specifically to Excoriation Disorder. While recurrent hair pulling relates to Trichotillomania, negative alterations in cognition are more closely associated with disorders like depression or anxiety rather than skin-picking specifically, and the development of emotional symptoms due to stressors is indicative of adjustment disorders rather than a hallmark of Excoriation Disorder.